class_docstr: A ZMQ socket in a simple blocking API
docstr: Is there a message that has been received? 
docstr_tok: ["Is","there","a","message","that","has","been","received","?"]
code: def msg_ready(self):
      """Is there a message that has been received?"""
      return bool(self.socket.poll(timeout=0))
  
file_path: catboost/contrib/python/jupyter-client/py2/jupyter_client/blocking/channels.py
label_desc: Use image node_id 5 for calling the ZMQSocketChannel obj's underlying member method code with example usage: obj.msg_ready() and returns: bool